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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10788408 B1

PDFFull Text
Date of Patent:
Sep. 29, 2020

Filed:

May. 16, 2017

Method for determining diffusion radius of in-situ injection and remediation of contaminated soil and groundwater

Applicant:

Bceg Environmental Remediation Co.,ltd, Beijing, CN;

Inventors:

Yuewei Yang, Beijing, CN;

Shupeng Li, Beijing, CN;

Yue Zhang, Beijing, CN;

Xiaobin Zhang, Beijing, CN;

Lili Guo, Beijing, CN;

Shuangchao Cui, Beijing, CN;

Xiaowei Song, Beijing, CN;

Fan Chen, Beijing, CN;

Pengcheng Yin, Beijing, CN;

Peng Liu, Beijing, CN;

Yan Liu, Beijing, CN;

Qiang Niu, Beijing, CN;

Assignee:

BCEG Environmental Remediation Co., Ltd, Beijing, CN;

Attorney:

Muncy, Geissler Olds & Lowe, P.C.

Primary Examiner:

Richard C Gurtowski

Int. Cl.
CPC ...
G01N 13/00 (2006.01); E21D 1/00 (2006.01); B09C 1/00 (2006.01); B09C 1/08 (2006.01); G01N 33/24 (2006.01); E21B 47/11 (2012.01);
U.S. Cl.
CPC ...
G01N 13/00 (2013.01); B09C 1/00 (2013.01); B09C 1/002 (2013.01); B09C 1/08 (2013.01); E21D 1/00 (2013.01); G01N 33/24 (2013.01); B09C 2101/00 (2013.01); E21B 47/11 (2020.05); G01N 2013/003 (2013.01);
Abstract

A method for determining the diffusion radius of in-situ injection and remediation of contaminated soil and groundwater. According to the triangle method, the hole spacing is perpendicular to the groundwater flow direction, the row spacing is along the groundwater flow direction, and the flow diffusion in the groundwater during the effective time of the remediation agent reaction is considered. Under high pressure rotary injection, the remediation agent and a certain proportion of bromide ions are simultaneously injected into the aquifer as a tracer. The diffusion of the agent is determined by observing the phenomenon of slurry-returning and slurry-channeling of adjacent injection points. After the completion of the injection, the groundwater is quickly sampled in fixed depth, the tracer concentration is quickly detected on site, and the concentration of bromide ions in the groundwater is compared with the background value. Comprehensive determination determines the optimal diffusion radius.

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